Hall effect measurements have been carried out to determine the carrier density and mobilities in ultrananocrystalline diamond films grown with added nitrogen. The results show clear n-type conductivity with very low thermal activation energy. Mobility values of 1.5 cm(2) V(-1) s(-1) are found for a sheet carrier concentration of 2x10(17) cm(-2). These measurements indicate that ultrananocrystalline films grown with high nitrogen levels in the growth gas mixture can have bulk carrier concentrations of up to 10(21), which is very high for diamond films. The n-type nature of this material was also confirmed by Seebeck effect measurements. (C) 2004 American Institute of Physics.
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
Hu, X. J.
Ye, J. S.
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Technol Ctr Hangzhou Iron & Steel Grp Corp, Hangzhou 310022, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
Ye, J. S.
Liu, H. J.
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
Liu, H. J.
Shen, Y. G.
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City Univ Hong Kong, Dept Mfg Engn & Engn Management MEEM, Kowloon, Hong Kong, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
Shen, Y. G.
Chen, X. H.
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
Chen, X. H.
Hu, H.
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R China
Hu, X. J.
Ye, J. S.
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R China
Ye, J. S.
Hu, H.
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R China
Hu, H.
Chen, X. H.
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Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R China
Chen, X. H.
Shen, Y. G.
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City Univ Hong Kong, Dept Mech & Biomed Engn BME, Kowloon, Hong Kong, Peoples R ChinaZhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou, Zhejiang, Peoples R China